CN217384599U

CN217384599U - Utensil is examined to box gas tightness under battery package

Info

Publication number: CN217384599U
Application number: CN202221420044.6U
Authority: CN
Inventors: 顾锋云
Original assignee: Changzhou Jinpin Precision Technology Co ltd; Dongguan Everwin Precision Technology Co Ltd
Current assignee: Changzhou Jinpin Precision Technology Co ltd; Dongguan Everwin Precision Technology Co Ltd
Priority date: 2022-06-08
Filing date: 2022-06-08
Publication date: 2022-09-06
Anticipated expiration: 2032-06-08

Abstract

The utility model relates to a battery package box gas tightness check out test set technical field, in particular to battery package lower box gas tightness examines utensil, including the support frame, with support frame upper end fixed connection's detection water tank, setting are in detection water tank is used for putting down the detection platform of box, set up be used for on the detection platform with lower box oral area confined seal part, be used for compressing tightly box down detect the last compressing tightly part of bench and to aerify aerating device in the lower box. The utility model discloses can carry out the gas tightness to the battery package lower box body and detect high efficiency.

Description

Utensil is examined to box gas tightness under battery package

Technical Field

The utility model relates to a battery package technical field, in particular to utensil is examined to box gas tightness under battery package.

Background

In the driving process of the electric automobile, the battery pack can be subjected to vibration and impact load, and in order to ensure high-voltage safety and reliable connection of the battery pack, each module and components of the battery pack need to be firmly installed in a battery pack box body. The battery package box includes box down and is used for closing confined lid with box lid down, and the lower box of battery box mainly used bears and protects the battery package, can supply power safely in order to guarantee the battery package, must require that the battery box has stronger dustproof and waterproof ability to cause the short circuit after dust and water get into the battery, influence the normal driving of car, threaten driver and crew's personal safety even, so the gas tightness of battery package box especially the gas tightness of box under the battery package detects especially important.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a utensil is examined to box gas tightness under battery package to conveniently carry out the gas tightness to the box under the battery package and detect.

In order to achieve the above purpose, the utility model adopts the following scheme:

the air tightness detection tool for the lower box body of the battery pack is used for detecting the air tightness of the lower box body of the battery pack and comprises a support frame, a detection water tank fixedly connected with the upper end of the support frame, a detection platform arranged in the detection water tank and used for placing the lower box body, a sealing part arranged on the detection platform and used for sealing the opening of the lower box body, a pressing part used for pressing the lower box body on the detection platform and an air charging device used for charging air into the lower box body.

Through the arrangement, when the lower box body is subjected to air tightness detection, the water in the detection water tank is reduced, so that the panel of the detection platform is higher than the water surface of the water in the detection water tank, the lower box body is reversely buckled on the detection platform, so that the edge of the mouth of the lower box body is pressed on the sealing part, the pressing part is controlled to press the lower box body on the sealing part on the detection platform to prevent the lower box body from moving upwards, then water is poured into the detection water tank to enable the water in the detection water tank to submerge the lower box body, then air is filled into the inner cavity of the lower box body to enable the air pressure in the inner cavity of the lower box body to reach the detection standard, pressure maintaining is carried out, whether bubbles escape from the lower box body is observed, and then whether the air tightness of the lower box body meets the standard is judged.

Further, the sealing component comprises a sealing gasket which is arranged on the panel of the detection table and corresponds to the edge of the opening of the lower box body.

Furthermore, a groove corresponding to the edge of the opening of the lower box body is formed in a panel of the detection table, and the sealing gasket is arranged in the groove.

Furthermore, the inflation device comprises an air pump and an inflation tube, one end of the inflation tube is communicated with the air pump, the other end of the inflation tube extends upwards out of the detection table through the panel of the detection table, which penetrates through the bottom of the detection table, and one end of the inflation tube, which is far away from the air pump, is fixedly connected with the panel of the detection table in a sealing manner.

Further, an inner cavity filler is fixedly connected to a panel of the detection table, and when the edge of the opening of the lower box body is aligned to the groove and the lower box body is placed on the detection table in a reverse buckling mode, the inner cavity filler is located in the inner cavity of the lower box body. The inner cavity filler reduces the space of the inner cavity of the lower box body, reduces the inflating amount for pressurizing the inner cavity of the lower box body, reduces the running time of the air pump and saves energy.

Furthermore, in order to improve the compressing speed of the lower box body, the compressing component comprises a plurality of uniformly distributed rotary compressing cylinders around the groove, the rotary compressing cylinders are vertically arranged, the bottoms of the rotary compressing cylinders are fixedly connected with the panel of the detection table, the rotary compressing cylinders are externally connected with an air source and control an electromagnetic valve for the rotary compressing cylinders to act, and the end parts of output shafts of the rotary compressing cylinders are fixedly connected with a pressing block.

Furthermore, a water inlet valve for filling water into the detection water tank and a water discharge valve for discharging the water in the detection water tank from the detection water tank are arranged on the detection water tank.

The utility model discloses following beneficial effect has at least:

the utility model discloses a rotatory compressing tightly cylinder that can realize the quick compression carries out the quick compression to lower box through setting up the recess that corresponds with lower box oral area edge and setting up the sealed pad in the recess on detecting table, makes the oral area edge of lower box can align fast and put into the recess and compressed tightly the sealed air leakage that prevents, through setting up the inner chamber filler in order to reduce the gas charge volume of aerifing to the box inner chamber, improves the inflation speed and practices thrift air pump operating time, the energy saving; the lower box body is inflated and placed into water, so that the airtight effect can be conveniently and visually checked, and leakage points possibly existing on the lower box body can be directly searched.

Drawings

Fig. 1 is a schematic view of the structure of the main viewing direction of the present invention.

Fig. 2 is a top view of the present invention.

Fig. 3 is an enlarged view of a portion a in fig. 1.

Wherein the reference numerals are:

the device comprises a support frame 10, a detection water tank 20, a detection table 30, a groove 301, a sealing gasket 302, a panel 303, an air pump 40, an air inflation pipe 401, inner cavity filler 50, a rotary compaction air cylinder 60, a pressing block 601, a water inlet valve 701, a water discharge valve 702 and a lower tank 80.

Detailed Description

The following is a more detailed description of the present invention by way of specific embodiments.

Example 1

The tightness testing fixture for the lower box of the battery pack in the embodiment is used for testing the tightness of the lower box of the battery pack (hereinafter referred to as lower box 80), and as shown in fig. 1, the tightness testing fixture for the lower box of the battery pack comprises a support frame 10, a testing water tank 20 fixedly connected with the upper end of the support frame 10, a testing table 30 arranged in the testing water tank 20 and used for placing the lower box 80, a sealing part arranged on the testing table 30 and used for sealing the mouth of the lower box 80, a pressing part used for pressing the lower box 80 onto the testing table 30, and an inflating device for inflating the lower box 80.

Specifically, support frame 10 is frame construction, the bottom and the ground fixed connection of support frame 10, detection water tank 20 is the square box of upper end open-ended, detection water tank 20 be used for the splendid attire water with convenient with box 80 submerges the leak source on the observation box 80 down in the water down, detection water tank 20's bottom plate with the upper end fixed connection of support frame 10 is provided with on the lateral wall of detection water tank 20 and is used for to the water intaking valve 701 of the water of pouring into in detection water tank 20 and will detect the drain valve 702 of the water drainage of water tank 20 in the water tank 20, water intaking valve 701 and outside water source intercommunication.

The bottom of the detection table 30 is fixedly connected with the bottom plate of the detection water tank 20, a panel 303 of the detection table 30 is provided with a groove 301 corresponding to the edge of the opening of the lower tank body 80, the sealing component is a sealing gasket 302 arranged in the groove 301, as shown in fig. 3, for convenience, the edge of the opening of the lower tank body 80 is aligned with the groove 301 and is placed in the groove 301 to be in contact with the sealing gasket 302, and the opening of the groove 301 is in a V shape with a guiding function.

Aerating device includes air pump 40 and gas tube 401, air pump 40 sets up on support frame 10 with support frame 10 fixed connection, is provided with the barometer on the air pump 40, and air pump 40 external power supply is used for driving the operation of air pump 40, the one end of gas tube 401 with air pump 40 intercommunication, gas tube 401's the other end stretch into in detecting water tank 20 and by the panel 303 of detecting platform 30 is passed to the bottom of detecting platform 30 upwards stretches out and detects platform 30, and gas tube 401 is kept away from the one end of air pump 40 and the panel 303 sealed fixed connection of detecting platform 30. An inner cavity filler 50 is fixedly connected to the panel 303 of the test platform 30, the inner cavity filler 50 has incompressibility, and when the lower box 80 is placed on the test platform 30 by reversing the lower box 80 to align the edge of the mouth of the lower box 80 with the groove 301, the inner cavity filler 50 is filled in the inner cavity of the lower box 80. Because the inner cavity filler 50 occupies partial space of the inner cavity of the lower box body 80 in the reverse buckle, the residual space of the inner cavity of the lower box body 80 is reduced, the inflation quantity for inflating and pressurizing the inner cavity of the lower box body 80 is reduced, the operation time of the air pump 40 is reduced, and the purpose of saving energy is achieved.

As shown in fig. 2, the compressing unit includes a plurality of rotating compressing cylinders 60 uniformly distributed around the lower box 80, the rotating compressing cylinders 60 are vertically disposed, the bottom of the rotating compressing cylinders 60 is fixedly connected to the panel 303 of the detecting table 30, the rotating compressing cylinders 60 are externally connected to an air source and an electromagnetic valve for controlling the rotating compressing cylinders 60, and a pressing block 601 is fixedly connected to an end of an output shaft of the rotating compressing cylinders 60.

When the utility model is used, before the lower box body 80 is placed in the detection water tank 20, the water in the detection water tank 20 is discharged out of the detection water tank 20 through the drain valve 702, so that the water surface of the water in the detection water tank 20 is lower than the panel 303 of the detection platform 30, and the drain valve 702 is closed; controlling the electromagnetic valve to enable the output shaft of the rotary pressing cylinder 60 to extend and rotate forward by 90 degrees so that the pressing block 601 is positioned outside the placing space of the lower box body 80 on the detection table 30; the lower box body 80 to be detected in the airtight state is reversely buckled on the detection table 30, so that the edge of the opening part of the lower box body 80 is positioned in the groove 301 and pressed on the sealing gasket 302, the electromagnetic valve is controlled to enable the output shaft of the rotary pressing cylinder 60 to be contracted and reversely rotate by 90 degrees, and the pressing block 601 is pressed on the bottom plate of the lower box body 80; the water inlet valve 701 is opened to fill water into the detection water tank 20, so that water in the detection water tank 20 submerges the lower tank body 80, then the air pump 40 is operated to inflate the inner cavity of the lower tank body 80 through the inflation tube 401, so that the air pressure in the inner cavity of the lower tank body 80 reaches the detection standard, pressure is maintained, whether bubbles escape from the lower tank body 80 is observed, and whether the air tightness of the lower tank body 80 meets the standard is further judged.

The utility model discloses a rotatory pressure cylinder 60 that can realize the quick compression carries out the quick compression to lower box 80 through setting up the recess 301 that the upper end that corresponds with the oral area edge of lower box 80 is V-arrangement on detecting table 30 and sets up sealed pad 302 in recess 301, makes the oral area edge of lower box 80 align fast and puts into recess 301 and compress tightly sealed pad 302, prevents that gas from leaking by the oral area of lower box when doing airtight detection; the inner cavity filler 50 is arranged to reduce the inflation quantity of the air inflated into the inner cavity of the lower box body 80, so that the inflation speed is improved, the operation time of the air pump 40 is saved, and the energy is further saved; the lower box body 80 is inflated to be placed in water, so that the airtight effect of the lower box body can be conveniently and visually checked, and leakage points possibly existing on the lower box body 80 can be directly searched.

The above are merely examples of the present invention, and the common general knowledge of the known specific structures and characteristics of the embodiments is not described herein. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims. .

Claims

1. The utility model provides an utensil is examined to box gas tightness under battery package for detect the gas tightness of box under the battery package, its characterized in that: the device comprises a support frame, a detection water tank fixedly connected with the upper end of the support frame, a detection platform arranged in the detection water tank and used for placing a lower box body, a sealing part arranged on the detection platform and used for sealing the mouth part of the lower box body, a pressing part used for pressing the lower box body on the detection platform and an inflating device used for inflating the lower box body.

2. The battery pack lower case airtightness testing fixture according to claim 1, wherein: the sealing component comprises a sealing gasket which is arranged on a panel of the detection table and corresponds to the edge of the opening of the lower box body.

3. The battery pack lower case airtightness testing fixture according to claim 2, wherein: the panel of the detection table is provided with a groove corresponding to the edge of the opening of the lower box body, and the sealing gasket is arranged in the groove.

4. The battery pack lower case airtightness testing fixture according to claim 3, wherein: the inflation device comprises an air pump and an inflation tube, one end of the inflation tube is communicated with the air pump, the other end of the inflation tube extends upwards out of the detection table from the bottom of the detection table through a panel penetrating through the detection table, and one end of the inflation tube, which is far away from the air pump, is fixedly connected with the panel of the detection table in a sealing manner.

5. The battery pack lower case airtightness testing fixture according to claim 4, wherein: an inner cavity filler is fixedly connected to a panel of the detection table, and when the edge of the opening of the lower box body is aligned with the groove and the lower box body is placed on the detection table in an inverted manner, the inner cavity filler is located in the inner cavity of the lower box body.

6. The battery pack lower case airtightness test tool according to claim 5, wherein: the pressing part comprises a plurality of rotary pressing cylinders which are uniformly distributed on the periphery of the groove, the rotary pressing cylinders are vertically arranged, the bottoms of the rotary pressing cylinders are fixedly connected with the panel of the detection table, an air source and an electromagnetic valve for controlling the rotary pressing cylinders to act are externally connected to the rotary pressing cylinders, and the end parts of output shafts of the rotary pressing cylinders are fixedly connected with pressing blocks.

7. The battery pack lower case airtightness testing fixture according to claim 6, wherein: the detection water tank is provided with a water inlet for filling water into the detection water tank and a water outlet for discharging the water in the detection water tank.